U.S. Sen. Ron Wyden, D-Oregon, said Thursday that he doesn’t know what’s in the classified memo written by Republicans accusing the FBI and the Justice Department of abusing the Foreign Intelligence Surveillance Act.

Furthermore, he said the House Committee on Intelligence has refused to give it to the Senate Select Committee on Intelligence, on which he serves.

The House committee, led by Rep. Devin Nunes, R-California, voted to release the memo, which is said to accuse the FBI and the Justice Department of misleading a FISA court when it sought to obtain a warrant to spy on former Trump campaign member Carter page.